engInternational Journal of Economics, Business and Management Studies2018-02-03 00:00:0041576410.20448/802.41.57.64articleImproving Economic Benefits through Coal Products Optimization in a Given GroupKai Zhangcsji@cumt.edu.cnChangsheng Jicsji@cumt.edu.cnHaibing Rencsji@cumt.edu.cnSchool of mines?China University of Mining and Technology (CUMT)?Xuzhou, ChinaSchool of mines?China University of Mining and Technology (CUMT)?Xuzhou, ChinaSchool of mines?China University of Mining and Technology (CUMT)?Xuzhou, Chinahttp://onlinesciencepublishing.com/./assets/journal/JOU0017/ART00194/1507361657_IJEBMS-2017-4(1)-57-64.pdfCoal products Production rate Optimization A given group Simplex method.